Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Ceres, the month of December registers the lowest temperatures, averaging 42.6°F (5.9°C) at the peak and 33.1°F (0.6°C) at the lowest.Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 89%.Rainfall
In December, in Ceres, Washington, the rain falls for 20 days. Throughout December, 5.35" (136mm) of precipitation is accumulated. Throughout the year, there are 185.5 rainfall days, and 36.1" (917mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Ceres, in December, snow falls for 1.4 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, there are 9 snowfall days, and 5.59" (142mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 4:26 pm. On the last day of December, in Ceres, sunrise is at 7:56 am and sunset at 4:35 pm PST.
Sunshine
The month with the least sunshine in Ceres is December, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What time of the year is the coldest in Ceres?
How cold does it get in Ceres in December?
What is the most humid month in Ceres?
What is the average humidity in December in Ceres?
How many days does it rain in December in Ceres?
How much does it snow in Ceres in December?
What is the month with the shortest days in Ceres?
What is the average length of the day in December in Ceres?
What time are sunrise and sunset in December in Ceres?
What is the month with the least sunshine in Ceres?
How long on average sun shines in December in Ceres?
What is the month with the lowest UV index in Ceres?
What is the UV index reading in December in Ceres?
Average temperature in December
Ceres, WA
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in December
Ceres, WA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in December
Ceres, WA
- Average wind speed in December: 4.3mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in December
Ceres, WA
- Average humidity in December: 89%
The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Ceres, WA
- Average rainfall in December: 5.35"
The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in December
Ceres, WA
- Average rainfall days in December: 20 days
The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in December
Ceres, WA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Ceres, WA
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Ceres, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Ceres, WA
- Average sunshine days in December: 9.5 days
The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in December
Ceres, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Ceres, WA
- Average cloud cover in December: 65
The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Ceres, WA
- Average visibility in December: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Ceres, Washington, USA
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